The diagram below shows three approximate locations of the sun along the western horizon. Which number indicates the location of the sun at sunset on June 21 for an observer at a latitude of 77° N?
a. 1
b. 2
c. 3
d. The sun will not rise for an observer in the northern hemisphere.
e. The sun will not set on June 21 at this latitude.
E
You might also like to view...
Through radar observations it was found that Venus':
A) orbit around the Sun is speeding up. B) atmosphere is changing rapidly. C) rotation on its axis is retrograde. D) orbit around the Sun is in the clockwise sense. E) orbital period is 243 days.
In a steam engine, steam at 140°C in a turbine does work on an external system, and the steam leaves the turbine at 100°C. The efficiency of the steam engine is 5%. The relevant physical principle is
a. the first law of thermodynamics. b. the second law of thermodynamics. c. specific heat capacity. d. operation of a heat pump. e. none of the above.
Thermal Expansion: The coefficient of volume expansion of a certain olive oil is 0.68 × 10-3 K-1. A 1.0-L glass beaker is filled to the brim with olive oil at room temperature. The beaker is placed on a range and the temperature of the oil and beaker increases by 25 C°. As a result, 0.0167 L of olive oil spills over the top of the beaker. Which of the following values is closest to the coefficient of linear expansion of the glass from which the beaker is made?
A. 1 × 10-6 K-1 B. 4 × 10-6 K-1 C. 1 × 10-5 K-1 D. 2 × 10-5 K-1 E. 3 × 10-5 K-1
Power: The power factor of an ac RL circuit with a 100-? resistor and a certain inductor is 0.60. What is the impedance of the circuit?
A. 170 ? B. 85 ? C. 340 ? D. 100 ? E. 60 ?